While it may be “obvious” who is doing this, in my view you have two strategies to deal with this. Both should be attempted at the same time.
When I refer to obvious in inverted commas, I mean without proof or hard evidence it useless and you run the risk of coming across as a unfounded complainer.
1. Surely there must be others in your complex who feel/see as you do. Sound them out. Try to get enough to make your views count.
2. Try to gather hard evidence of misdeeds eg glued locks, broken things. Not easy but others may be inclined to help especially if they have had something of theirs broken.
This will take longer and involve effort but it is the only way.